Array.prototype.find = function(searchStr) {
  var returnArray = false;
  for (i=0; i<this.length; i++) {
    if (typeof(searchStr) == 'function') {
      if (searchStr.test(this[i])) {
        if (!returnArray) { returnArray = [] }
        returnArray.push(i);
      }
    } else {
      if (this[i]===searchStr) {
        if (!returnArray) { returnArray = [] }
        returnArray.push(i);
      }
    }
  }
  return returnArray;
}

function isArray(testObject) {   
    return testObject && !(testObject.propertyIsEnumerable('length')) && typeof testObject === 'object' && typeof testObject.length === 'number';
}

var _touts = new Array();
var _deck;
var _toutsDirectory = '/lactaid/callouts/';
var _toutsFileExtention = '.inc';


/***
* constructor
**/
function ToutManager() {}


/**
* addTout(toutId, groupId, weight)
*/
ToutManager.prototype.addTout =	
	function(toutId, groupId, weight) {
		_touts[_touts.length] = [toutId, groupId, weight];
	}	

/***
* displayTout(targetId)
**/	
ToutManager.prototype.displayTout = 
	function(targetId) {

		// pick a random tout from the deck, display it, and remove it from the deck
		if(_deck == null || _deck.length == 0) return;
		
		var i = Math.floor(Math.random() * _deck.length);
		var tout = _deck[i][0];
		this.displayToutById(tout, targetId);
		this.removeTout(tout);
		
	}
	

/**
* removeTout
**/
ToutManager.prototype.removeTout = 
	function(toutId) {
		// remove all instances from the deck that match the selected id
		for(var j = _deck.length-1; j >= 0; j--) {
			if(_deck[j][0] === toutId) {
				_deck.splice(j,1);		
			}
		}		
	}

	
/***
* displayToutById(toutId, targetId)
**/
ToutManager.prototype.displayToutById = 
	function(toutId, targetId) {
		var _id = _toutsDirectory + toutId + _toutsFileExtention;
		jQuery.get( "/callout.jhtml", { id: _id }, function(data) {
			jQuery('#' + targetId).html(data);	
		});

	}
	
/***
* initDeck(groups, excludeGroups)
**/	
ToutManager.prototype.initDeck =
	function(groups, excludeGroups) {
		_deck = new Array();
		
		// default groups to *
		if(groups == null) 
			groups = '*';
		
		for(var i = 0; i < _touts.length; i++) {
 			
			var groupId = _touts[i][1];
			var include = ( (groups == '*') || groupId == groups || ( isArray(groups) && groups.find(groupId) !== false)  );
			
			
			if(include) {
				if(isArray(excludeGroups)) {
				console.log('it\'s an array');
					include = include && (excludeGroups.find(groupId) === false);
				} else {
					include = include && (groupId != excludeGroups);
				}
			}		
			
			if(include) {
				for(var j = 0; j < _touts[i][2]; j++)
					_deck[_deck.length] = _touts[i];
			}		
		}
	}	
	

	
ToutManager.prototype.printDeck = 
	function() {
	   for(var i = 0; i < _deck.length; i++)
	      console.log(_deck[i].toString());
	}
	
	

ToutManager.prototype.setDirectory = 
	function(directory) {
		_toutsDirectory = directory;
	}
	
ToutManager.prototype.setExtension = 
	function(extension) {
		_toutsFileExtention = extension;	
	}